Home / 120,512.31-166,316.94-66,814.17

Finding the Fourth Proportional to 120,512.31, 166,316.94 and 66,814.17

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Solution

The fourth proportional to 120,512.31, 166,316.94 and 66,814.17 is: 92,209.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,512.31 : 166,316.94 = 66,814.17 : x
  2. Step 2: Convert to fraction form
    120,512.31/166,316.94 = 66,814.17/x
  3. Step 3: Cross multiply
    120,512.31x = 166,316.94 × 66,814.17
  4. Step 4: Simplify right side
    120,512.31x = 11,112,328,303.04
  5. Step 5: Solve for x
    x = 11,112,328,303.04/120,512.31
  6. Step 6: Final answer
    x = 92,209.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.